气候变化领域集成服务门户(CCPortal): 新疆表土磁学性质及其环境意义

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	新疆表土磁学性质及其环境意义
其他题名	Magnetic characteristics of surface soil and its significance in Xinjiang,China
	魏海涛; 夏敦胜; 陈发虎; 金明; 王训明; 贾佳; 刘现彬
发表日期	2009
ISSN	1000-6060
卷号	32 期号:5 页码:676-683
中文摘要	在新疆地区采集了331块表土样品,分析了样品的磁性特征(磁性矿物种类、磁性矿物含量和粒径组成)及其环境意义.结果指示新疆地区表土磁性特征存在较大的区域差异.北疆样品中磁性矿物总体含量较高,以单畴和假单畴颗粒的磁铁矿、磁赤铁矿等软磁性矿物为主,南疆样品中磁性矿物含量较低,硬磁质含量稍高,单畴颗粒矿物所占比重较北疆低;伊犁地区样品的磁性矿物在组成上与南疆样品更为接近,但成壤相对较强,超顺磁颗粒含量高.新疆地区表土磁性特征差异在一定程度上反映了新疆地区环境因子的区域差异,尤其是年均降水的不同.
英文摘要	In this study,a set of environmental magnetic parameters(chi_(lf),chi_(fd)%,chi_(ARM),SIRM,HIRM SOFT and SIRM/chi_(lf),chi_(ARM)/SIRM and chi_(ARM)/chi_(lf)) of 331 surface soil samples in Xinjiang were systematically measured.The magnetic characteristics(magnetic mineralogy,magnetic grain -size and magnetic property) and its environmental significance were discussed.Results indicate that the main magnetic minerals in these surface soils are single domain magnetite.The content of magnetic minerals in surface soils in north Xinjiang is higher than that in south Xinjiang; however,the content of hard magnetic minerals is higher in surface soils in south Xinjiang.The parent rock samples in Yili region contain similar magnetic minerals as that in south Xinjiang,but with much higher magnetic SP content due to higher pedogenic process.The differences in magnetic characteristics among surface soils in different regions of Xinjiang might reflect the differences in regional climate,especially the amount of precipitation.
关键词	环境磁学表土磁化率新疆
英文关键词	environmental magnetism;surface soil;magnetic susceptibility;Xinjiang
语种	中文
WOS研究方向	Geology
WOS类目	GEOLOGY
CSCD记录号	CSCD:3684588
来源期刊	干旱区地理
来源机构	兰州大学 ; 中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/1655
推荐引用方式 GB/T 7714	魏海涛,夏敦胜,陈发虎,等. 新疆表土磁学性质及其环境意义[J]. 兰州大学, 中国科学院青藏高原研究所,2009,32(5):676-683.
APA	魏海涛.,夏敦胜.,陈发虎.,金明.,王训明.,...&刘现彬.(2009).新疆表土磁学性质及其环境意义.干旱区地理,32(5),676-683.
MLA	魏海涛,et al."新疆表土磁学性质及其环境意义".干旱区地理 32.5(2009):676-683.